package com.example.tests;

import static org.junit.Assert.assertThat;
import static org.hamcrest.Matchers.*;
import java.util.Random;
import org.testng.annotations.Test;
import com.example.utils.SortedListOf;


public class GroupRemovalTests extends TestBase {
	
	@Test
	public void deleteSomeGroup() {
           // save old state
		SortedListOf<GroupData> oldList = app.getGroupHelper().getGroups();
         
         Random rnd  = new Random();
         int index = rnd.nextInt(oldList.size() - 1);
            
           // action
         
         app.getGroupHelper().deleteGroup(index);
		 
          // save new state
         SortedListOf<GroupData> newList = app.getGroupHelper().getGroups();
              
          // compare states 
        assertThat(newList, equalTo(oldList.without(index)));
     	}
	}
